Summary of Contents for Geo Excel RZ CS Series
- Page 1 RZ CS Series Heat pump RZ024 | RZ036 | RZ048 | RZO60 | RZ070 Installation, Operation and Maintenance Manual...
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Page 2: Table Of Contents
RZ CS Series Heat Pump CONTENTS Notes ................33 Model Nomenclature............3 Key to Symbols..............3 Safety Warnings..............3 Standard RZ CS package ............ 4 GENERAL DESCRIPTION ............ 4 MOVING AND STORAGE ............. 4 INITIAL INSPECTION ............4 LOCATION................. 4 Condensing Section ............. 4 Air Handler .............. -
Page 3: Model Nomenclature
RZ CS Series Heat Model Nomenclature | 3 MODEL NOMENCLATURE SERIES WATER CONNECTIONS F - Front SIZE COAX OPTIONS C - Copper N - Cupro-Nickel CABINET CONFIGURATION CS - Condensing Section VOLTAGE DESIGNATIONS - 208/1/60 & 230/1/60 Revision Level A... -
Page 4: Standard Rz Cs Package
4 | Standard RZ CS package RZ CS Series Heat Pump STANDARD RZ CS PACKAGE MOVING AND STORAGE If the equipment is not needed for immediate installation upon its arrival at the job site, it should be left in its shipping carton and stored in a clean, dry area. -
Page 5: Air Handler
RZ CS Series Heat Piping | 5 Air Handler In conditions anticipating moderate scale formation or in brackish water a cupro-nickel heat Locate the air handler unit in an indoor area that exchanger is recommended. allows easy removal of the filter and access panels,... -
Page 6: Electrical
6 | Electrical RZ CS Series Heat Pump ELECTRICAL Safety Devices and the UPM Controller Refer to electrical component box layout. (Figure #4) Field wiring must comply with local and national electric codes. Power to the unit must be within the... - Page 7 RZ CS Series Heat Electrical | 7 If the thermostat is provided with a malfunction light powered off of the hot (R) side of the UPM Board Factory Default Settings transformer, then the thermostat malfunction TEMP 30°F light connection should be connected directly to the (ALR) contact on the unit’s UPM board.
- Page 8 8 | Electrical RZ CS Series Heat Pump • MALFUNCTION OUTPUT: active. The LED will flash (three (3) times) the Alarm output is If pulse is code associated with this alarm condition. If Normally Open (NO) dry contact. selected the alarm output will be pulsed. The...
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Page 9: Options
RZ CS Series Heat Options | 9 OPTIONS DPS Water Flow Proving Number of factory installed options are available The DPS water flow proving switch is a factory on RZ Series of Heat Pumps. The following details installed option available for the RZ series. The... -
Page 10: Heat Recovery Package
10 | Heat Recovery Package RZ CS Series Heat Pump To identify a Flash Code number, count the 5. Once drained the tank should be flushed with number of consecutive flashes. cold water until the water leaving the drain hose is clear and free of sediment. -
Page 11: Water Tank Refill
RZ CS Series Heat Heat Recovery Package | 11 Water Tank Refill Initial Start-Up 1. Open the cold water supply to the tank. Make sure all valves in heat recovery water 2. Open a hot water faucet to vent air from the piping system are open. -
Page 12: Sequence Of Operation
12 | Sequence of Operation RZ CS Series Heat Pump SEQUENCE OF OPERATION Heating Mode The first two stages of heating (Y1 & Y2) operate in Cooling Mode the same manner as cooling, but with the reversing Energizing the “O” terminal energizes the unit valve de-energized. - Page 13 RZ CS Series Heat Sequence of Operation | 13 UPM Sequence of Operation (SOO) Flow Chart Y1=1 Power/Switchs/Sensor Status Check 18VAC > Lockout Can Be Set To 4 Via Dip Switch Blink Code On Status LED Soft Lockout HPC = 1...
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Page 14: Application Considerations
14 | Application Considerations RZ CS Series Heat Pump APPLICATION CONSIDERATIONS pressure must always be maintained in the heat exchanger. This can be accomplished with either Well Water Systems control valve or a bladder type expansion tank. Copper is adequate for ground water that is not When using a single water well to supply both high in mineral content. -
Page 15: Cooling Tower/Boiler Systems
RZ CS Series Heat Application Considerations | 15 Cooling Tower/Boiler Systems Ball valves should be installed in the supply and return lines for unit isolation and unit water flow The cooling tower and boiler water loop balancing. Pressure/temperature ports are temperature is usually maintained between 50°... -
Page 16: Geothermal Systems
16 | Application Considerations RZ CS Series Heat Pump Geothermal Systems installation easy. Anti-freeze solutions are utilized when low evaporating conditions are expected to Closed loop and pond applications require occur. Refer to the GLP installation manuals for specialized design knowledge. No attempt at these more specific instructions. -
Page 17: System Checkout
RZ CS Series Heat System Checkout | 17 SYSTEM CHECKOUT UNIT START-UP After completing the installation, and before 1. Set the thermostat to the highest setting. energizing the unit, the following system checks 2. Set the thermostat system switch to “COOL”, should be made: and the fan switch to the “AUTO”... -
Page 18: 18 | Maintenance
18 | Maintenance RZ CS Series Heat Pump 2. An annual “checkup” is recommended by a 3. Lubrication of the blower motor is not licensed refrigeration mechanic. Recording the required, however may be performed on some performance measurements of volts, amps, motors to extend motor life. -
Page 19: Unit Check-Out Sheet
RZ CS Series Heat Unit Check-Out Sheet | 19 UNIT CHECK-OUT SHEET Customer Data Customer Name _____________________________________________ Date ___________________________________ Address ______________________________________________________ _______________________________________________________________ Phone _______________________________________________________ Unit Number ___________________________ Unit Nameplate Data Unit Make _________________________________________ Model Number ____________________________________ Serial Number ____________________________________ Refrigerant Charge (oz) __________________________... -
Page 20: Troubleshooting
20 | Troubleshooting RZ CS Series Heat Pump TROUBLESHOOTING Troubleshooting Information Solution column may reflect a possible fault that may be one of, or a combination of causes and solutions. Check each cause and adopt "process of elimination" and or verification of each before making any conclusion. - Page 21 RZ CS Series Heat Troubleshooting | 21 Unit Troubleshooting Problem Possible Cause Checks and Correction INSUFFICIENT Unit undersized Recalculate heating and or cooling loads. If excessive, possibly adding COOLING OR insulation and shading will rectify the problem HEATING Loss of...
- Page 22 22 | Troubleshooting RZ CS Series Heat Pump Comfort Alert Module -Flash Codes Status LED Status LED Description Status LED Troubleshooting Information Solution YELLOW "ALERT" Short Cycling 1. Thermostat demand signal is intermittent FLASH CODE 3 Compressor is 2. Time delay relay or control board defective running only briefly 3.
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Page 23: Unit Lockouts
RZ CS Series Heat Troubleshooting | 23 Comfort Alert Module -Flash Codes Status LED Status LED Description Status LED Troubleshooting Information Solution YELLOW "ALERT" Welded Contactor 1. Compressor contactor has failed closed FLASH CODE 8 Compressor always 2. Thermostat demand signal not connected to module runs YELLOW "ALERT"... -
Page 24: Operating Temperatures And Pressures
24 | Operating Temperatures and Pressures RZ CS Series Heat Pump OPERATING TEMPERATURES AND PRESSURES Operating Temperatures and Pressures COOLING HEATING Entering Suction Discharge Water Suction Discharge Water Model Water Pressure Pressure Temp Temp Pressure Pressure Temp Temp Temp. F... - Page 25 RZ CS Series Heat Operating Temperatures and Pressures | 25 Operating Temperatures and Pressures COOLING HEATING 73-89 266-325 15-18 30° 77-94 272-333 16-19 117-143 189-231 14-17 18-22 86-105 279-341 17-21 40° 112-137 178-217 19-24 90-110 286-350 18-22 126-154 221-270 14-17...
- Page 26 26 | Operating Temperatures and Pressures RZ CS Series Heat Pump Operating Temperatures and Pressures COOLING HEATING 64-78 248-303 15-18 30° 12.0 67-82 254-311 16-19 109-134 183-224 18-22 19-23 75-91 261-319 17-21 40° 12.0 105-128 172-210 10-12 20-25 79-96 267-327...
- Page 27 RZ CS Series Heat Operating Temperatures and Pressures | 27 Operating Temperatures and Pressures COOLING HEATING 68-84 256-313 19-23 30° 14.0 73-89 261-319 20-25 113-138 172-210 18-22 19-23 81-99 277-339 22-26 40° 14.0 110-134 161-196 12-14 20-24 86-105 283-346 23-28...
- Page 28 28 | Operating Temperatures and Pressures RZ CS Series Heat Pump Operating Temperatures and Pressures COOLING HEATING 71-87 259-316 19-23 30° 18.0 76-92 264-322 20-25 116-141 175-213 18-22 19-23 84-102 280-342 22-26 40° 18.0 113-137 164-199 12-14 20-24 89-108 286-349...
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Page 29: Water Side Pressure Drop Table
RZ CS Series Heat Water Side Pressure Drop Table | 29 WATER SIDE PRESSURE DROP TABLE Figure 14: Water side pressure drop in PSIG Water PD @ 77°EWT Series with Water RZ024 RZ036 RZ048 12.5 RZ060 17.5 12.5 RZ070 17.5... -
Page 30: Wiring Diagrams
30 | Wiring Diagrams RZ CS Series Heat Pump WIRING DIAGRAMS 8 733 922 031 (2014/03) Subject to change without prior notice RZ CS Series Heat Pump... -
Page 31: Dimensional Drawings
RZ CS Series Heat Dimensional Drawings | 31 DIMENSIONAL DRAWINGS Revised 03-14 8 733 922 031 (2014/03) - Page 32 32 | Notes RZ CS Series Heat Pump NOTES 8 733 922 031 (2014/03) Subject to change without prior notice RZ CS Series Heat Pump...
- Page 33 3512 Cavalier Court, Fort Wayne, IN 46808 Phone: 260-484-4433 | Toll Free: 877-4-GEO-411 www. GeoExcel.com | info@GeoExcel.com Revised 03-14...
- Page 34 RZ AH Series Heat pump RZ024 | RZ036 | RZ048 | RZO60 | RZ070 Installation, Operation and Maintenance Manual...
- Page 35 RZ AH Series Heat Pump CONTENTS Notes ................28 AH Model Nomenclature ............ 3 Key to Symbols..............3 Safety Warnings..............3 Initial Inspection ............... 4 RZ AH Standard PackageS..........4 GENERAL DESCRIPTION ............ 4 MOVING AND STORAGE ............. 4 SAFETY CONSIDERATIONS..........4 LOCATION.................
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Page 36: Ah Model Nomenclature
RZ AH Series Heat Pump AH Model Nomenclature | 3 AH MODEL NOMENCLATURE AV X X L T A SERIES FAN MOTOR OPTIONS A - Constant Airflow ECM SIZE DISCHARGE AIR CONFIGURATION T - Top (AV only) S - Straight (AH only) E - End (AH only) RETURN AIR CONFIGURATION L - Left... -
Page 37: Initial Inspection
4 | INITIAL INSPECTION RZ AH Series Heat Pump GENERAL DESCRIPTION All refrigerant discharged from this unit These Split System Heat Pumps provide the best must be recovered WITHOUT EXCEPTION. combination of performance and efficiency Technicians must follow industry accepted available. -
Page 38: Air Handler
RZ AH Series Heat Pump Installation | 5 INSTALLATION the air handler and the condensing section as close as possible to each other. Remove all shipping blocks under blower Air Handler housing. Locate the air handler unit in an indoor area that allows easy removal of the filter and access panels, The installer should comply with all local codes and has enough room for service personnel to... -
Page 39: Mounting Vertical Air Handler Units
6 | CONDENSATE DRAIN RZ AH Series Heat Pump Mounting Vertical Air Handler Units Some applications require an attic floor installation of the horizontal air handler unit. In Vertical units should be mounted level on a this case the unit should be set in a full size vibration absorbing pad slightly larger than the secondary drain pan on top of a vibration base to minimize vibration transmission to the... -
Page 40: Duct System
RZ AH Series Heat Pump DUCT SYSTEM | 7 The condensing unit should be pitched The duct system and all diffusers should be sized approximately 1/4" towards the drain in both to handle the designed air flow quietly. To directions, to facilitate condensate removal. (See maximize sound attenuation of the unit blower, the Figure #6) supply and return air plenums should be insulated. -
Page 41: Electric Heater Package Option
8 | Electrical RZ AH Series Heat Pump Electric Heater Package Option Low Voltage Control Wiring Factory installed internal electric heater packages The RZ series units incorporate the ECM variable are available for all unit sizes, in certain speed fan motor and control interface board. The configurations;... -
Page 42: Electronic Thermostat Installation
RZ AH Series Heat Pump Electrical | 9 All heaters rated single phase 60 Hz, and include unit fan load. All fuses type “D” time delay or HACR type breaker or HRC FORM 1. Wire size based on 60 deg. C copper conductors. Units supplied with internal electric heat require Packaged heat pumps are equipped with two (2) separate power supplies: one for the unit... -
Page 43: Ecm Interface Board
10 | Electrical RZ AH Series Heat Pump If the unit is being connected to a thermostat with For the condensate overflow sensor, connect ‘CS’ at the a malfunction light, this connection is made at the condensing section to ‘CS’ at the air handler. Be sure to ground power supply. -
Page 44: Sequence Of Operation
RZ AH Series Heat Pump Sequence of operation | 11 Heating Mode Just above and to the right of the thermostat connection block are four sets of jumper pins Heating operates in the same manner as cooling, labeled ADJ, DELAY, HEAT and COOL. The ADJ set but with the reversing valve de-energized. -
Page 45: Linear Vs Equivalent Line Length
12 | SYSTEM CHECKOUT RZ AH Series Heat Pump • Oil is continually being circulated with the • Connect and braze lines to service valves on refrigerant so, oil return to the compressor is the condensing section. always a consideration in line sizing. Suction WARNING: Always wrap the body of the lines on split system heat pumps are also hot service valve with a wet towel or apply some... -
Page 46: Unit Start-Up
RZ AH Series Heat Pump UNIT START-UP | 13 • Check the blower for free rotation, and that it is secured to the shaft. • Verify that vibration isolation has been provided. • Unit is serviceable. Be certain that all access panels are secured in place. -
Page 47: Unit Checkout Sheet
14 | Unit Checkout Sheet RZ AH Series Heat Pump UNIT CHECKOUT SHEET Customer Data Customer Name _____________________________________________ Date ___________________________________ Address ______________________________________________________ _______________________________________________________________ Phone _______________________________________________________ Unit Number ___________________________ Unit Nameplate Data Unit Make _________________________________________ Model Number ____________________________________ Serial Number ____________________________________ Refrigerant Charge (oz) __________________________ Compressor: RLA ____________________ LRA ___________________________... -
Page 48: Troubleshooting
RZ AH Series Heat Pump Troubleshooting | 15 TROUBLESHOOTING Unit Troubleshooting Problem Possible Cause Checks and Correction ENTIRE UNIT Power Supply Off Apply power, close disconnect DOES NOT RUN Blown Fuse Replace fuse or reset circuit breaker. Check for correct fuses Voltage Supply If voltage is below minimum voltage specified on unit data plate, contact local power company. - Page 49 16 | Troubleshooting RZ AH Series Heat Pump Unit Troubleshooting Problem Possible Cause Checks and Correction INSUFFICIENT Unit undersized Recalculate heating and or cooling loads. If excessive, possibly adding COOLING OR insulation and shading will rectify the problem HEATING Loss of Check for leaks in duct work or introduction of ambient air through conditioned air by doors or windows...
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Page 50: Wiring Diagrams
RZ AH Series Heat Pump Wiring Diagrams | 17 WIRING DIAGRAMS Figure # 14 RZ - No Electric Heat Kit 8 733 922 031 (2014/03) - Page 51 18 | Wiring Diagrams RZ AH Series Heat Pump Figure # 15 RZ- With Electric Heat Kit 8 733 922 031 (2014/03) Subject to change without prior notice RZ AH Series Heat Pump...
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Page 52: Dimensional Drawings
RZ AH Series Heat Pump Dimensional drawings | 19 DIMENSIONAL DRAWINGS 8 733 922 031 (2014/03) - Page 53 20 | Dimensional drawings RZ AH Series Heat Pump 8 733 922 031 (2014/03) Subject to change without prior notice RZ AH Series Heat Pump...
- Page 54 RZ AH Series Heat Pump Notes | 21 NOTES 8 733 922 031 (2014/03)
- Page 55 22 | Notes RZ AH Series Heat Pump 8 733 922 031 (2014/03) Subject to change without prior notice RZ AH Series Heat Pump...
- Page 56 RZ AH Series Heat Pump Notes | 23 8 733 922 031 (2014/03)
- Page 57 3512 Cavalier Court, Fort Wayne, IN 46808 Phone: 260-484-4433 | Toll Free: 877-4-GEO-411 www. GeoExcel.com | info@GeoExcel.com Revised 02-14...
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